adminHow to Block ATM Card in Nigeria Using USSD, Losing your ATM card or noticing suspicious transactions on your bank account can be very scary—especially in Nigeria, where ATM card fraud, card trapping, and unauthorized withdrawals are becoming more common. The good news is that you can block your ATM card instantly using USSD codes, even without internet access, a smartphone, or a banking app.
This comprehensive guide explains how to block an ATM card in Nigeria using USSD, covering all major Nigerian banks, including GTBank, Access Bank, First Bank, Zenith Bank, UBA, Fidelity Bank, FCMB, Union Bank, Stanbic IBTC, Wema Bank, Polaris Bank, Sterling Bank, and others.
This article is written to help you protect your money immediately, avoid fraud, and understand what to do after blocking your ATM card.
1. What Does Blocking an ATM Card Mean?
Blocking an ATM card means temporarily or permanently disabling the card so it cannot be used for:
- ATM withdrawals
- POS transactions
- Online payments
- Transfers linked to the card
Once blocked, no one can access your money using that card, even if they know your PIN.
2. When Should You Block Your ATM Card?
You should block your ATM card immediately if:
- Your ATM card is lost or stolen
- Your card is trapped inside an ATM machine
- You notice unauthorized withdrawals or transactions
- Your card details are compromised
- Your phone linked to the bank account is stolen
⏰ Time is critical. Blocking your card early can save you from serious financial loss.
3. Why USSD Is the Fastest Way to Block an ATM Card in Nigeria
USSD (Unstructured Supplementary Service Data) is the most reliable method to block ATM cards in Nigeria because:
- It works without internet
- It works on any phone (smart or feature phone)
- It is instant
- It is available 24/7
- It is officially supported by Nigerian banks
This makes USSD the best emergency solution.
4. Requirements to Block ATM Card Using USSD
Before using a USSD code to block your ATM card, ensure:
- The phone number is linked to your bank account
- You have network signal
- Your line is active
- You know your bank’s official USSD code
No airtime is usually required, but some networks may charge a small USSD fee.
5. How to Block ATM Card in Nigeria Using USSD (General Steps)
Although USSD codes differ by bank, the process is similar:
- Dial your bank’s USSD code
- Select Card Services or ATM Card Blocking
- Choose Block Card
- Confirm with your PIN or date of birth
- Receive confirmation via SMS
Once confirmed, your card is blocked instantly.
6. GTBank USSD Code to Block ATM Card
GTBank USSD Code:
👉 Dial *737*51*10#
Steps:
- Dial 73751*10#
- Follow the on-screen instructions
- Confirm the card blocking
This code works even if your phone is not the one linked to the account.
7. Access Bank USSD Code to Block ATM Card
Access Bank USSD Code:
👉 Dial *901*911#
Steps:
- Dial 901911#
- Select ATM Card Services
- Choose Block Card
- Confirm
8. First Bank USSD Code to Block ATM Card
First Bank USSD Code:
https://www.firstbanknigeria.com/digital-banking/
use👉 Dial *894*911#
This is one of the fastest ATM card blocking USSD codes in Nigeria.
9. Zenith Bank USSD Code to Block ATM Card
Zenith Bank USSD Code:
👉 Dial *966*911#
Follow the prompts to block your card instantly.
10. UBA USSD Code to Block ATM Card
UBA USSD Code:
👉 Dial *919*911#
Works on all Nigerian networks.
11. Fidelity Bank USSD Code to Block ATM Card
Fidelity Bank USSD Code:
👉 Dial *770*911#
12. FCMB USSD Code to Block ATM Card
FCMB USSD Code:
👉 Dial *329*911#
13. Union Bank USSD Code to Block ATM Card
Union Bank USSD Code:
👉 Dial *826*911#
14. Stanbic IBTC USSD Code to Block ATM Card
Stanbic IBTC USSD Code:
👉 Dial *909*911#
15. Wema Bank USSD Code to Block ATM Card
Wema Bank USSD Code:
👉 Dial *945*911#
16. Polaris Bank USSD Code to Block ATM Card
Polaris Bank USSD Code:
👉 Dial *833*911#
17. Sterling Bank USSD Code to Block ATM Card
Sterling Bank USSD Code:
👉 Dial *822*911#
18. Can You Block an ATM Card from Another Phone?
Yes ✅
Most Nigerian banks allow you to block your ATM card from any phone, not just the one linked to your account—especially using the *911 USSD emergency codes.
This is useful if your phone is stolen together with your ATM card.
19. What Happens After Blocking Your ATM Card?
After blocking your ATM card:
- The card becomes unusable immediately
- Your account remains active
- Your money stays safe
- You can still receive transfers
- You can request a replacement card
20. How to Unblock or Replace a Blocked ATM Card
Most blocked cards cannot be unblocked for security reasons. You will need to:
- Visit your bank branch
- Request a new ATM card
- Present a valid ID
- Pay a replacement fee
21. ATM Card Blocking Charges in Nigeria
- Blocking via USSD: Usually free
- Replacement card fee: ₦1,000 – ₦2,000 (varies by bank)
22. Common Problems and Solutions
Problem: USSD code not working
Solution: Check network signal or try again later
Problem: Wrong phone number
Solution: Use another phone with the correct USSD code
23. ATM Card Fraud Prevention Tips
- Never share your ATM PIN
- Avoid using ATMs at night
- Cover the keypad while entering PIN
- Enable transaction alerts
- Block your card immediately if lost
- 24. Frequently Asked Questions (FAQs)
24. Frequently Asked Questions (FAQs)
Can I block my ATM card without internet?
Yes. USSD works completely offline.
Can someone still withdraw after I block my card?
No. Once blocked, transactions are impossible.
Is USSD card blocking safe?
Yes. It is officially provided by Nigerian banks.
25. Final Thoughts
Knowing how to block an ATM card in Nigeria using USSD can save you from devastating financial loss. This simple step works instantly, requires no internet, and is available 24 hours a day.
If you found this guide helpful, bookmark it or share it—you never know when you or someone else may need it urgently
25. Final Thoughts
Knowing how to block an ATM card in Nigeria using USSD can save you from devastating financial loss. This simple step works instantly, requires no internet, and is available 24 hours a day.
Read Also how to check account balance with ussd
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